1308128924 has 12 divisors (see below), whose sum is σ = 2297674848. Its totient is φ = 651650400.

The previous prime is 1308128923. The next prime is 1308128959. The reversal of 1308128924 is 4298218031.

It is a super-2 number, since 2×1308128924² = 3422402563610795552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308128923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602297 + ... + 604464.

It is an arithmetic number, because the mean of its divisors is an integer number (191472904).

Almost surely, 2^1308128924 is an apocalyptic number.

It is an amenable number.

1308128924 is a deficient number, since it is larger than the sum of its proper divisors (989545924).

1308128924 is a wasteful number, since it uses less digits than its factorization.

1308128924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207036 (or 1207034 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1308128924 is about 36168.0649745048. The cubic root of 1308128924 is about 1093.6629912217.

The spelling of 1308128924 in words is "one billion, three hundred eight million, one hundred twenty-eight thousand, nine hundred twenty-four".